yea dion is right u need the mil eliminators with out those sensors, youll get a check engine light and u wont pass smog. was the readyness test on the computer ok? was there less then 3 bad codes on the readiness test?i know this cause i went trough this after i gutted my cats and installed the mil elminators. i got a code scanner. oh and run your car for about 25 to 30 miles before you test it. and keep it running while you are waiting to be tested. hey dion hows kevin? tell him i say was up.

98 svt contour, magnaflows, sho shop intake, sho shop high flow cat, no pre cats, custom cougars short shifter, 3 liter hybird engine woo hoo im happy, and just added a dmd underdrive pulley.